Company patents

NORTHWESTERN POLYTECHNICAL UNIVERSITY

NORTHWESTERN POLYTECHNICAL UNIVERSITY's patent strategy reveals a surprising lack of sustained focus, with many categories experiencing significant year-over-year fluctuations. For instance, Loudspeakers & Microphones saw a dramatic 300.0% increase in 2025, only to decline by 75.0% so far in 2026, while areas like Force / Pressure Measurement and Speech Processing have seen a complete cessation of patenting activity so far in 2026, indicating rapidly shifting priorities across its diverse portfolio.

Patent Trend by Technology Area

Yearly patent publications since 2023

Product themes

Product-level themes inferred from filings since 2023, with category chips showing where each theme appears. Select a theme to filter the patents below.

65 US filings (since 2023) · 12 categories · 17 themes

Advanced Audio Signal Processing

Techniques for enhancing, encoding, decoding, or separating speech and audio signals, often involving multi-microphone arrays, acoustic echo cancellation, beamforming, or advanced audio compression for improved clarity and quality.

Speech Processing
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9since 2023
+100.0%YoY
Microphone Array Beamforming

Signal processing techniques for multi-microphone systems to enhance desired audio signals and suppress noise or interference by spatially filtering sound sources, improving signal-to-noise ratio and channel separation.

Loudspeakers & Microphones
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8since 2023
+300.0%YoY
MEMS Microphone Structures

Design and manufacturing techniques for microelectromechanical systems (MEMS) microphones, focusing on physical components like diaphragms, movable masses, and housing for improved performance, heat management, or fluid interaction.

Loudspeakers & Microphones
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7since 2023
+400.0%YoY
Differential & Dynamic Pressure Sensing

Systems and sensors designed to measure the pressure difference between two distinct points or to capture rapid, transient pressure fluctuations in fluid or gas systems, often using diaphragms or pistons.

Force / Pressure Measurement
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6since 2023
0.0%YoY
Capacitive Force/Pressure Sensors

Measures force or pressure by detecting changes in electrical capacitance. This typically involves the deformation of a dielectric material or the relative movement of conductive plates, altering the distance or area between them.

Force / Pressure Measurement
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4since 2023
0.0%YoY
Tactile & Contact Force Sensing

Sensors and systems designed to detect and quantify localized contact forces, pressure distribution, or touch interactions, often employed in robotics, human-machine interfaces, or object manipulation applications.

Force / Pressure Measurement
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4since 2023
0.0%YoY
Drone Fleet Management

Systems for coordinating multiple drones, managing their operations within an airspace, including real-time connectivity, traffic management, and task allocation for cooperative missions.

Unmanned Aerial Vehicles (Drones)
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3since 2023
n/a
AI for Medical Diagnostics

Utilizing machine learning, particularly deep learning, to analyze medical data such as images, sensor readings, or physiological signals for disease prediction, diagnosis, or treatment assessment.

Image ProcessingComputer Vision
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2since 2023
+100.0%YoY
Component Performance Optimization

Using computational design and simulation to optimize the performance characteristics of specific components or materials within a larger engineering system.

Electronic Design Automation (CAD/EDA)
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2since 2023
new
Plastic Extrusion Processes

Methods and equipment for continuously shaping plastic materials by forcing them through a die, often involving screw extruders, heating elements, and downstream calibration.

Plastics Shaping & Molding
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2since 2023
0.0%YoY
Multi-modal Sensor Fusion

Techniques for combining data from disparate sensor types (e.g., cameras, radar, mobile device signals) to achieve a more robust and comprehensive understanding of an environment or subject, often leveraging machine learning for interpretation and correlation.

Computer Vision
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1since 2023
new
Photolithography Process Modeling

Computational methods for modeling and simulating photolithography processes, including mask design, aerial image generation, and defect prediction for semiconductor manufacturing.

Electronic Design Automation (CAD/EDA)
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1since 2023
new
Optical Fiber Strain/Pressure Sensing

Utilizes optical fibers, often incorporating Fiber Bragg Gratings (FBG), to detect changes in strain, pressure, or temperature based on modifications to light signals (e.g., wavelength shifts, phase changes) transmitted through the fiber.

Force / Pressure Measurement
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1since 2023
n/a
Deepfake Voice Detection

Methods and systems for identifying synthetic or manipulated speech (deepfake audio) using forensic analysis of audio features, such as breath patterns, vocoder signatures, or machine learning models to determine authenticity.

Speech Processing
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1since 2023
n/a
Flight Stability & Control

Mechanisms and algorithms designed to enhance the stability, precision, and safety of drone flight, including damping systems, rotor dynamics, fault-tolerant control, and transition between flight modes.

Unmanned Aerial Vehicles (Drones)
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1since 2023
n/a
Lane-Level Mapping & Localizationfiltered

Techniques for generating, updating, and utilizing highly detailed digital maps that include lane-specific information, and for precisely determining a vehicle's position within these lanes, often using sensor data.

Navigation & Geodesy
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1since 2023
n/a
Multi-Sensor Positioning Systems

Integration and processing of data from diverse sensors (e.g., magnetometers, odometers, IMUs, vision sensors) to achieve robust and accurate positioning, especially in environments where GPS is unreliable or unavailable.

Navigation & Geodesy
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1since 2023
n/a

Patents

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